Area Code 307 — Wyoming
Area code 307 is located in Wyoming and operates on Mountain Time . The largest city served is Cheyenne .
Coverage Area
Area code 307 — WyomingArea Code Details
- Area Code
- 307
- State / Province
- Wyoming (WY)
- Country
- United States
- Time Zone
- Mountain Time Mountain Time
- Local Time Now
- —
- Status
- Active
- Code Type
- General Purpose Code
- In Service Since
- January 1, 1947
- Assigned
- January 1, 1947
- Population Served
- ~344,252 est.
Cities Served
Rate Centers & Exchanges
25 rate centers identified within area code 307
Nearby Area Codes
Frequently Asked Questions About Area Code 307
What state is area code 307?
Area code 307 is located in Wyoming, United States.
Where is area code 307 from?
Area code 307 originates from Wyoming. It operates in the Mountain Time zone.
What time zone is area code 307?
Area code 307 falls within the Mountain Time zone (Mountain Time).
What cities are in area code 307?
Area code 307 serves cities including Cheyenne, Casper, Gillette, Laramie, Rock Springs, Sheridan, Green River, Evanston, and more.
Is a call from area code 307 a scam?
Area code 307 is a legitimate general purpose code area code serving Wyoming. Like any area code, individual numbers using 307 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.